CN104190933A - Method for preparing laser rapid forming rhenium spraying pipe - Google Patents
Method for preparing laser rapid forming rhenium spraying pipe Download PDFInfo
- Publication number
- CN104190933A CN104190933A CN201410457541.7A CN201410457541A CN104190933A CN 104190933 A CN104190933 A CN 104190933A CN 201410457541 A CN201410457541 A CN 201410457541A CN 104190933 A CN104190933 A CN 104190933A
- Authority
- CN
- China
- Prior art keywords
- powder
- laser
- rhenium
- jet pipe
- sintering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention provides a method for preparing a laser rapid forming rhenium spraying pipe. The method is characterized by comprising the following steps that firstly, a spraying pipe three-dimensional solid model is designed through the CAD, the model is sliced into a multi-layer two-dimensional profile to be saved as an STL file, and data are transmitted to a laser melting rapid forming system; secondly, Re powder and an organic binding material are evenly mixed and placed in a powder cylinder; thirdly, the protection gas is injected; fourthly, a layer of mixed powder is laid on a workbench top, and a workbench is preheated; fifthly, the scanning speed, the sintering temperature and the like of a laser are designed, and the laser is controlled to carry out sintering according to first layer section information; sixthly, the workbench descends by a certain height, powder continues to be laid, and new-round scanning and sintering are started; seventhly, the sixth step is repeatedly executed till three-dimensional solid parts are stacked; eighthly, high-temperature roasting is carried out. According to the method, high technique integration is achieved, the machining period is short, a die is not needed, and batched production can be achieved; through the protection gas, the powder is prevented from being oxidized, and the manufactured spraying pipe has superior comprehensive performance.
Description
Technical field
The present invention relates to a kind of preparation method of jet pipe, particularly relate to a kind of preparation method of laser fast shaping rhenium jet pipe.
Technical background
Jet pipe is that geometry by changing pipeline section inwall is to accelerate a kind of device of air-flow, be used for the aerospace field such as aircraft, rocket, conventionally the condition of work harshness of jet pipe, under non-cooling condition, jet pipe will directly bear the high speed of high temperature, 4～7MPa high pressure and the 1500～2500m/s of 2500～3600 DEG C, and need to bear containing the washing away of solid particles combustion gas, corrosion function, thereby high to the performance requirement of material, not only require material bearing capacity strong but also require heat resistance strong.Re (rhenium) is as conventional aeronautical material, has higher elastic modelling quantity, good tensile strength, creep limit, creep rupture strength and thermal shock resistance, from room temperature to 2227 DEG C, can stand 10
5inferior above heat fatigue circulates and did not lose efficacy, but rhenium is very easily oxidized formation Re
2o
7make rhenium embrittlement.
Application number is the preparation method that 200810233086.7 Chinese patent discloses a kind of rocket tube, and it comprises the following steps: (1) prepares the blank of described rocket tube and the plug of the described blank of preparation; (2) after described mandrel surface spray-on coating, grinding is carried out in the surface of plug, and the plug after grinding and described blank are joined to car; (3) by equipped on press to the plug after grinding and described blank; Then the entirety assembling is carried out to jacket processing; (4) entirety of jacket being handled well is carried out hip treatment in high temperature insostatic pressing (HIP) stove; (5) after hip treatment, remove sheath material and plug, then the jet pipe blank of adhering coating is carried out to fine finishining obtain product of the present invention.This inventive method is not only applicable to the larger-size jet pipe of endoporus, and it is less and coating is had to a jet pipe of particular/special requirement to be applicable to interior hole dimension.
Application number is that 200810031043.0 Chinese patent discloses and a kind ofly prepares molybdenum or the molybdenum alloy jet pipe that shape is very complicated by powder injection forming method, molybdenum powder or molybdenum alloy powder are mixed with into uniform feeding with a kind of by the Multi-component binder that paraffin-oil-low molecules agent-high molecular polymer forms, feeding is injected in injector to molybdenum or molybdenum alloy jet pipe injection base, injection base is carried out to solvent degreasing, control solvent degreasing rate 50%～65%, then solvent degreasing base carries out degreasing pre-burning in thermal debinding furnace, finally the sample after hot degreasing pre-burning is carried out to high temperature sintering, prepared molybdenum jet pipe or molybdenum alloy jet pipe are without distortion, and stable performance.
Above two kinds of inventions can make dystectic jet pipe, but can not avoid powder oxidized in preparation process, thereby the material fragility making is increased; Preparation process needs mould, and working (machining) efficiency is low.
Summary of the invention
Object of the present invention is intended to overcome the deficiencies in the prior art, and a kind of preparation method of laser fast shaping rhenium jet pipe is provided, and it is characterized in that comprising the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out to slicing treatment and obtains the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser melting rapid prototyping system;
(2) Re (rhenium) powder is evenly mixed to the powder cylinder of putting into 3D printer with organic adhesive, organic adhesive accounts for 10%～20% of amount of the mixture;
(3) in the moulding cylinder of 3D printer, pass into protective gas;
(4) with the powder-laying roller mixed-powder that uniform spreading last layer thickness is 0.08～0.3mm on work top, preheating workbench to 100～200 DEG C;
(5) sweep speed of design laser is 20～200mm/s, and sintering temperature is 300～350 DEG C, controls laser and carries out selective sintering according to the ground floor cross section information of design elements;
(6) under computer control, workbench decline certain altitude, the mixed-powder that is 0.08～0.3mm with powder-laying roller continuation uniform spreading last layer thickness, laser beam starts the scanning sintering of a new round;
(7) the continuous repeating step 6 of system, until be piled into Three-dimensional Entity Components;
(8) take out entity component, roasting 3～5h under 1000～1200 DEG C of high temperature.
The purity of described Re (rhenium) powder is 99%～99.999%, particle diameter be 50 orders to 500 orders, the wall thickness of rhenium jet pipe is 2～5mm; Protective gas is nitrogen, hydrogen or argon gas.
Advantage of the present invention:
(1) preparation process height technology is integrated, has realized the integrated of Design and manufacture, and the process-cycle is short, and cost is low, and efficiency is high, without mould, simple to operate, can realize batch production.
(2) adopt protection gas to avoid powder oxidized in preparation process, the jet pipe making has excellent combination property.
Brief description of the drawings
Fig. 1 is the schematic diagram of laser fast shaping technique.
10 reflective rollers; 20 powder-laying rollers; 30 positive forming parts; 40 powder for molding not; 50 moulding cylinders; 60 powder cylinders.
Detailed description of the invention
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims to the amendment of the various equivalent form of values of the present invention and limit.
Embodiment 1
A preparation method for laser fast shaping rhenium jet pipe, is characterized in that comprising the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out to slicing treatment and obtains the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser melting rapid prototyping system;
(2) Re (rhenium) powder is evenly mixed to the powder cylinder of putting into 3D printer with organic adhesive, organic adhesive accounts for 10% of amount of the mixture;
(3) in the moulding cylinder of 3D printer, pass into protective gas;
(4) with the powder-laying roller mixed-powder that uniform spreading last layer thickness is 0.08mm on work top, preheating workbench to 100 DEG C;
(5) sweep speed of design laser is 20mm/s, and sintering temperature is 300 DEG C, controls laser and carries out selective sintering according to the ground floor cross section information of design elements;
(6) under computer control, workbench decline certain altitude, the mixed-powder that is 0.08mm with powder-laying roller continuation uniform spreading last layer thickness, laser beam starts the scanning sintering of a new round;
(7) the continuous repeating step 6 of system, until be piled into Three-dimensional Entity Components;
(8) take out entity component, roasting 3h under 1000 DEG C of high temperature.
The purity of Re (rhenium) powder is 99%, and particle diameter is 50 orders; The wall thickness of rhenium jet pipe is 2mm; Protective gas is nitrogen.
Embodiment 2
A preparation method for laser fast shaping rhenium jet pipe, is characterized in that comprising the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out to slicing treatment and obtains the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser melting rapid prototyping system;
(2) Re (rhenium) powder is evenly mixed to the powder cylinder of putting into 3D printer with organic adhesive, organic adhesive accounts for 20% of amount of the mixture;
(3) in the moulding cylinder of 3D printer, pass into protective gas;
(4) with the powder-laying roller mixed-powder that uniform spreading last layer thickness is 0.3mm on work top, preheating workbench to 200 DEG C;
(5) sweep speed of design laser is 200mm/s, and sintering temperature is 350 DEG C, controls laser and carries out selective sintering according to the ground floor cross section information of design elements;
(6) under computer control, workbench decline certain altitude, the mixed-powder that is 0.3mm with powder-laying roller continuation uniform spreading last layer thickness, laser beam starts the scanning sintering of a new round;
(7) the continuous repeating step 6 of system, until be piled into Three-dimensional Entity Components;
(8) take out entity component, roasting 5h under 1200 DEG C of high temperature.
The purity of Re (rhenium) powder is 99.999%, and particle diameter is 500 orders; The wall thickness of rhenium jet pipe is 5mm; Protective gas is argon gas.
Above are only two detailed description of the invention of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content that does not depart from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (4)
1. a preparation method for laser fast shaping rhenium jet pipe, is characterized in that comprising the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out to slicing treatment and obtains the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser melting rapid prototyping system;
(2) Re (rhenium) powder is evenly mixed to the powder cylinder of putting into 3D printer with organic adhesive, organic adhesive accounts for 10%～20% of amount of the mixture;
(3) in the moulding cylinder of 3D printer, pass into protective gas;
(4) with the powder-laying roller mixed-powder that uniform spreading last layer thickness is 0.08～0.3mm on work top, preheating workbench to 100～200 DEG C;
(5) sweep speed of design laser is 20～200mm/s, and sintering temperature is 300～350 DEG C, controls laser and carries out selective sintering according to the ground floor cross section information of design elements;
(6) under computer control, workbench decline certain altitude, the mixed-powder that is 0.08～0.3mm with powder-laying roller continuation uniform spreading last layer thickness, laser beam starts the scanning sintering of a new round;
(7) the continuous repeating step 6 of system, until be piled into Three-dimensional Entity Components;
(8) take out entity component, roasting 3～5h under 1000～1200 DEG C of high temperature.
2. preparation method according to claim 1, is characterized in that the purity of described Re (rhenium) powder is 99%～99.999%, and particle diameter is that 50 orders are to 500 orders.
3. preparation method according to claim 1, is characterized in that the wall thickness of described rhenium jet pipe is 2～5mm.
4. preparation method according to claim 1, is characterized in that described protective gas is nitrogen, hydrogen or argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457541.7A CN104190933B (en) | 2014-09-10 | A kind of preparation method of laser fast shaping rhenium jet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457541.7A CN104190933B (en) | 2014-09-10 | A kind of preparation method of laser fast shaping rhenium jet pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190933A true CN104190933A (en) | 2014-12-10 |
| CN104190933B CN104190933B (en) | 2017-01-04 |
Family
ID=
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216683A (en) * | 2016-07-21 | 2016-12-14 | 湖南中铼工业科技有限公司 | A kind of rhenium crucible and preparation method thereof and for preparing the mould of rhenium crucible |
| CN107790715A (en) * | 2016-08-31 | 2018-03-13 | 冯耀荣 | A kind of tubing production technology |
| CN110586937A (en) * | 2019-09-23 | 2019-12-20 | 南京中科煜宸激光技术有限公司 | 3D printing method for metal combustion chamber of civil rocket engine |
| CN111411251A (en) * | 2020-05-07 | 2020-07-14 | 贵研铂业股份有限公司 | Anti-oxidation coating for rhenium spray pipe, preparation method of anti-oxidation coating and rhenium-anti-oxidation coating spray pipe |
| CN112601657A (en) * | 2018-12-25 | 2021-04-02 | 株式会社Lg化学 | Molding apparatus and method of producing molded body |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0606627A1 (en) * | 1993-01-15 | 1994-07-20 | Stratasys Inc. | Method and apparatus employing sequential two-dimensional geometry for producing shells for fabrication by a rapid prototyping system |
| JP2001301045A (en) * | 2000-04-19 | 2001-10-30 | Nsk Ltd | Rapid prototyping apparatus |
| CN1861296A (en) * | 2006-06-14 | 2006-11-15 | 华中科技大学 | Method for near-purification formation of parts |
| CN101254537A (en) * | 2008-04-11 | 2008-09-03 | 中南大学 | Method for preparing molybdenum and molybdenum alloys effuser by powder injection forming |
| CN101733614A (en) * | 2008-11-20 | 2010-06-16 | 中国兵器工业第五九研究所 | Method for preparing rocket engine jet pipe and special equipment thereof |
| CN101780544A (en) * | 2010-01-15 | 2010-07-21 | 黑龙江科技学院 | Method for forming refractory metal parts by using laser |
| CN103695681A (en) * | 2013-12-18 | 2014-04-02 | 湖南航天工业总公司 | Forming device and method of aluminum-based silicon carbide particle reinforced composite material and member thereof |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0606627A1 (en) * | 1993-01-15 | 1994-07-20 | Stratasys Inc. | Method and apparatus employing sequential two-dimensional geometry for producing shells for fabrication by a rapid prototyping system |
| JP2001301045A (en) * | 2000-04-19 | 2001-10-30 | Nsk Ltd | Rapid prototyping apparatus |
| CN1861296A (en) * | 2006-06-14 | 2006-11-15 | 华中科技大学 | Method for near-purification formation of parts |
| CN101254537A (en) * | 2008-04-11 | 2008-09-03 | 中南大学 | Method for preparing molybdenum and molybdenum alloys effuser by powder injection forming |
| CN101733614A (en) * | 2008-11-20 | 2010-06-16 | 中国兵器工业第五九研究所 | Method for preparing rocket engine jet pipe and special equipment thereof |
| CN101780544A (en) * | 2010-01-15 | 2010-07-21 | 黑龙江科技学院 | Method for forming refractory metal parts by using laser |
| CN103695681A (en) * | 2013-12-18 | 2014-04-02 | 湖南航天工业总公司 | Forming device and method of aluminum-based silicon carbide particle reinforced composite material and member thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈振华: "《现代粉末冶金技术》", 31 March 2013, article "6.3 选择性激光烧结", pages: 351-352 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216683A (en) * | 2016-07-21 | 2016-12-14 | 湖南中铼工业科技有限公司 | A kind of rhenium crucible and preparation method thereof and for preparing the mould of rhenium crucible |
| CN107790715A (en) * | 2016-08-31 | 2018-03-13 | 冯耀荣 | A kind of tubing production technology |
| CN112601657A (en) * | 2018-12-25 | 2021-04-02 | 株式会社Lg化学 | Molding apparatus and method of producing molded body |
| CN112601657B (en) * | 2018-12-25 | 2023-08-04 | 株式会社Lg化学 | Forming device and method for producing formed body |
| CN110586937A (en) * | 2019-09-23 | 2019-12-20 | 南京中科煜宸激光技术有限公司 | 3D printing method for metal combustion chamber of civil rocket engine |
| CN110586937B (en) * | 2019-09-23 | 2021-10-15 | 南京中科煜宸激光技术有限公司 | 3D printing method for metal combustion chamber of civil rocket engine |
| CN111411251A (en) * | 2020-05-07 | 2020-07-14 | 贵研铂业股份有限公司 | Anti-oxidation coating for rhenium spray pipe, preparation method of anti-oxidation coating and rhenium-anti-oxidation coating spray pipe |
| CN111411251B (en) * | 2020-05-07 | 2021-04-06 | 贵研铂业股份有限公司 | Anti-oxidation coating for rhenium spray pipe, preparation method of anti-oxidation coating and rhenium-anti-oxidation coating spray pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190030608A1 (en) | Gradient sintered metal preform | |
| CN103801695B (en) | A kind of metal slip 3D prints without mould ejection forming method | |
| CN105710377B (en) | Composite additive manufacturing method using composite additive manufacturing features for composite components | |
| US20040081573A1 (en) | Binder removal in selective laser sintering | |
| US20150125334A1 (en) | Materials and Process Using a Three Dimensional Printer to Fabricate Sintered Powder Metal Components | |
| TW201945099A (en) | Adaptive 3D printing | |
| CN104084584B (en) | For the Laser Scanning of high temperature alloy structural member rapid shaping | |
| CN100419105C (en) | Metal ceramic material and formation technology | |
| CN104174846B (en) | Ceramic matrix composite niobium alloy skirt section 3D printing method | |
| TW201900427A (en) | Feed for 3D printing as well as preparation method thereof and application thereof | |
| US10625337B2 (en) | Adhesion to build plate in 3D printer | |
| CN103922755B (en) | 3D prints ceramic part material therefor and technique | |
| CN104711442A (en) | Method for manufacturing hard alloy by 3D printing | |
| CN104628393B (en) | A kind of preparation method of high-performance ceramic | |
| CN105057665A (en) | Three-dimensional part printing method | |
| CN103769587A (en) | Method and device for producing metal 3D printing method product | |
| JP5819503B1 (en) | Method for manufacturing lost wax mold for powder metallurgy that is layered with 3D printer | |
| TW201936296A (en) | Geometry for debinding 3D printed parts | |
| EP3478503A2 (en) | Methods and thin walled reinforced structures for additive manufacturing | |
| CN104384518A (en) | Method for coating copper on surface of tungsten copper carbide alloy composite material | |
| CN105290404A (en) | Preparation method for hard alloy products by injection molding | |
| CN113500205B (en) | 3D printing method of bimetallic material | |
| CN105268978A (en) | Preparation method for piston by powder injection molding | |
| WO2013154145A1 (en) | High-density molding device and high-density molding method for mixed powder | |
| CN103433492B (en) | Blow molding method for powder of metal hollow product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 215400 Chengxiang City, Taicang Province town of the People South Road, No. 162, No. Patentee after: TAICANG PAIOU TECHNOLOGY CONSULTATION SERVICE CO., LTD. Address before: Taicang City, Suzhou City, Jiangsu Province, and 215400 Metro Jianxiong Road No. 20 Patentee before: TAICANG PAIOU TECHNOLOGY CONSULTATION SERVICE CO., LTD. |
|
| CP02 | Change in the address of a patent holder |